Improvement in circuit closers and breakers, for alarm-telegraphs



W.` B. WATK'INS. CIRCUIT CLOSERSAND BREAKERS FDR ALARM'TELEGRAPI-I.,N.17z,zzo.'

Patented Jani.11,1876.

N4 PETERS, PHOTULITHURAPHER, WASHINGTON. D, C.

NITED STATES PATENT OEEICE.

wiLEiAMEwATKINs, or JERsEY-crTY, NEW JERSEY. r

' in,Prev5M"ENT` IN circuit crestas AND BREAKERS, For ALARM-TELEGRAPHS.y

Specification forming lpart of LiettersiPatent No. 172,220, datedJanuary 11, 1876; application filed V t December `in, i872.

To `all whom it may concern:

Be it known that I, WILLLAM BJWArKrNs,

of` `Jersey City, State of New Jersey,.have in- {EhislplateDltistsecureduto its standard by `means of an insulator, zul-thecentralA openingyin which, bein glarger than the revolving shaft y F,allows theilatter to pass through itwithout tonching, asshownin Fig. 4.1Thexed plate -Dfis provided, on,` its circumference or side, I -withlnon-conductors, which may consister' in- `vsulatin'g. material;` or;spaces may be cutin the metallic plate, so as to rallow the spring cof.lthe arm" G to` passover `them without contact iwithisaid plate.` Mypresent inventionis, therefore, to accomplishsubstantially thesamefresults, but byan improved method; and con- Visists, first,fincomloiningwith` and arranging upon the i face of an "insulating-platesecured to the face of the; magnetic motor-train of wheels a seriesof"springswitches or keys, `radiallyfronu near the center of the plate toits outer circumferencegwhere 1 they are held by set-screwmso that, bytherevolvingof the circuit breakerand closer arm on the arbor of themotor-wheels, `any one of the `series of switches, corresponding innumber with the number ofthe room or` place where an alarm `is given,will be switched 1 out `of the .circuit and transferred 'through `1 thenonstationary "revolving circuit-breaker, to establish anewA circuitthrough antalarm-instrument `at the `detective-station second, incombining with the said spring switches or keys, as arranged 'Lupen theinsulating disk" or plate, a circuitcloser metallic plate,`fresti-nglonthe upper side of l. the switches,near their innenends, `and a second ortransfer circuit-closer plate under 'the ends .of the. spring-switches,and slightly separated therefrom, seas to prevent any circuit throughit, except when the newcircuit is required to give an alarm atthedetectivestation, by the revolvingcircuit-closer arm depressing thepoint of the springswitch upon the transfer circuit-closer plate, andaway from the circuit-closer plate on the upper side of it; and, third,`in the combination of the revolving circuit breaker and `closer,`asinsulated upon the arbor of a train of "electro-magnetic motor-wheels,with a series of radially-arranged spring switches or keys, having theirends between an upper and lower circuit and transfer circuitcloserplatessecuredupon the face of an' insulating-plate, whereby, by theyrotation of the circuitbreaker and closer, any room or place 1n`magnetic connection with the instru- `ment may be designated by aparticular spring switch or key when attacked by tire or burglars, andthe number indicated on a dialplate, and, by the transfer of the circuitthroughthe transfer circuit-closer plate, an

alarm-bell rung ata detective-station.

But, to describe myinventionniore particu` larly, I will referito theaccompanying' drawings, forming a part of this specitication, the sameletters of reference, wherever they occur, referring to like parts.

Figure 1 represents the face or front of 'the apparatus, showing' inbroken lines a part of v the dial-plateand pointer to indicate thenumbers thereon. Fig. 2 is a section of the appat rat-us `through theline w,"Fpig. l. Fig. 3 is a View of the magnet and train ofwheels-forep- 'erating the apparatus. Fig. a is a detached view of therevolving circuit `breaker and closer, having its point resting upon theend 'of aspring switch or key. Fig. 5 is adetached side view of thesame. sectional view of the saine, having au auxiliary transfercircuit-closer attached thereto, and its connection `with arbor andtransferfcircuitcloser plate. Fig. 7 is a detached sectional viewof` thespring switch or key depressed upon thetransfer circuit-closer plate'bythe revolving circuit-closer. Fig. Sis a detached sectional view of thespring switch or keyin its normal state, and `carrying the-currentthrough the `uppercircuitfcloser plate. Fig. `9`

isa detached endvigw ot` the spring switch or Fig. 6is anenlarged y key,showing the channel in which it is depressed in the face of theinsulating disk or plate. 4'

Letter A represents the ease, and B the dial secured to the frontthereof. Within the case is arranged a train of clockwork wheels, and

spring to give motion to the apparatus when liberated from itsdetent-lever C by the closing of the electrical circuit through themagnet D and armature E, also arranged in the said case A. On thefrontside of the case is secured, by screws E, an insulating1i late orcircular-shaped disk, G, through the center of which projects arevolving shaft, H. i On its outer end is secured a pointer, I, for thepur-Y pose of indicating' on the dial-plate B the num- .ber of anyparticular room 'or place in mag'-` netic connection with the apparatusthrough Vits corresponding circuit closer or' breaker key; also, on thesaine shaft, and close in contact break and close an electrical circuitthrough any speciiied switch or key forming part of -the apparatus, andvin magnetic connection with a lire, burglar, or telegraphic station,and

an alarm-bell in a detective-station. This is accomplished by means ofIa series of radially-arranged spring switches or keys, M, secured bytheir outer ends, near the circumference of the insulating-disk, byscrews N, and extending inward in channels, in straight lines, to nearthe center ot' the disk, so as to be under the end of the follower Lofthe revolvin g circuit. breaker and closer arm. Upon the upper surfaceof these spring switches or keys, near their inner ends, is secured, byscrews I, to the face of the insulating-disk, a

circular circuit-closer metallic plate, Q, so as to rest upon and inmetallic contact with the spring switches or keys, and thus establish anormal circuit through the apparatus, through the -lpole of the battery,through the spring switch or key M', and the plateQ in contacttherewith, to the pole thereof, asl shown in Fig. 1. When thus arrangedthe apparatus is ready to be set in motion by the closing of the circuitat any distant point by a heat-detecter or thermostat, to give` noticeof a tire, or, by

` the opening or closingof doors or windows, to

give notice of attacks by burglars, or by closing the circuit i'orgeneral telegraphic purposes.

When the circuit at the normal station has been closed, by whatevermeans, the electrical current, passing through the magnet D, closes vthe armature E and releases the detent-lever C t'rom the train ofclock-wheels, and thus sets the revolving' circuit breakerand closer inmotion. Now, if the normal station where the thermostat is placed is inelectrical connection with the apparatus thrqugh the spring switch orkeyM2., when the end of the follower L of the revolving arm K comes on it,as shown in Figs. 1 and 7, the end of the key is depressedcircuit-closer plate Q, and down upon atransfer circuit-closer plate,It, secured by screws S toltlie facerof the insulating disk or plate G,and thus, by breaking the circuit through the .away from contact withthe normal circular magnet D, stops. the rot-ation of the arm K,

which is registered by the' pointer I on the dial-plate B as room No. l,as shown in Fig. 1, as having been attacked by. tire if set in motion bya heat-detecter, or by burglars if set in `motion by opening or closingdoors or windows, or by a call if used for general tele-I graphicpurposes. Instantly that the circuiti is broken through the plate Q, andthe apparatus stopped, the newcircuit is established through thetransfer circuitcloser plate R, and thence continued, through the poleT2 of the battery, to any suitable magnetic alarm-bell apparatusarranged in the circuit, and at a detective-station, to give an alarm ofthe attack on the Anormal station by either re or burglars, or t'or callpurposes, as the case may be.

To insure and avoid any possible interruption of the transfer-circuitfrom thepoint of the spring-key through the transfer-plate R, anauxiliary arm, U, is formed on the opposite side ofthe revolving ,arm K,having an elastic point resting on the face of the transfer-plate R. Bythis means the transfer-circuit, it' interrupted through the point ofthe spring-key resting on the transfer-plate, 4will take its coursethrough the follower L, arm K, .to the auxiliary arm and th'us to thetransfer-plate R, and off by the pole T2 of the battery, to establish.the circuit through an alarm-bell apparatus.

In the drawings but five spring switches or keys are shown, as beingdeemed sufficient to illustrate the principles upon which the apparatusworks. In practical use, however, it is designed to use as many of theseindependent spring switches or keys as space willv permit of adjustmenton the face of the insulating-disk, even to the number of hundreds,where the apparatus is applied to hotels for either re or burglarpurposes, or to independent stores or buildings, along the streets oftowns or cities, to give alarms of fire orattacks by burglars ata singledetective-station.

The method of forming electrical circuits with the various independentplaces through the apparatus being common and well known, it is notdeemed necessary to give any particular description lof such-circuits,as they will be readily understood by persons conversant with theapparatus hereinbefore described.

Having now described my invention, I will proceed to set forth what Iclaim and de sire to secure by Letters Patent of the United States:

1. 4The revolving circuit breaker and closer 172,220 A v v y 3 composedof an insulating-collar, J, arm K,

and follower L, in combination with the revolving shaft H andinsulating-plate G, subl stantially as described, and for the purposes 42. The circular normal and transfer circuitcloser plates Q and R,arranged one within the other and on different planes, in combinationwith the insulating-plate G, substantially as described.

43. The said circular normal and transfer circuit-closer plates,arranged as described, in combination with the radially-arranged .springswitches or keys M and insulating-plate G, substantially as described.

4. The combination of the revolving circuit closer and breaker, made asdescribed, with the spring switches or keysM and circular normal andtransfer circuit-plates Q andR, substantially as described.

5. The combination of the auxiliary circuitcloser arm U with therevolving circuit closer and breaker arm K, and follower L and transfercircuit-closer plate R, substantially as set forth. 4

6. The combination ofthe pointer I and dialplate B with the revolvingcircuit closer and breaker K- L, andradially arranged spring switches orkeys M, substantially as described. 7. The said apparatus, as described,in conlbination with the magnet D, armature E, and

train of clock-Wheels, substantially as setA forth, and for the-purposesspecilicd.

WILLIAM B. WATKINS.

Witnesses:

J. H. MUNsoN, GHA'RLEs L. BARRITT.

